Fix windows build
Created by: JonRowe
Pin ffi on 1.8 and 1.9 on windows due to a change in required Rubies for ffi.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Created by: JonRowe
Pin ffi on 1.8 and 1.9 on windows due to a change in required Rubies for ffi.